<template>
  <view class="goods-item">
    <!-- 商品左侧图片区域 -->
    <view class="goods-item-left">
      <radio
        value=""
        color="#c00000"
        :checked="goods.goods_state"
        v-if="showRadio"
        @click="radioChange"
      />
      <image
        :src="goods.goods_small_logo || defaultPic"
        class="goods-pic"
      ></image>
    </view>
    <!-- 商品右侧信息区域 -->
    <view class="goods-item-right">
      <!-- 商品标题 -->
      <view class="goods-name">{{ goods.goods_name }}</view>
      <view class="goods-info-box">
        <!-- 商品价格 -->
        <view class="goods-price">￥{{ goods.goods_price | tofixed }}</view>
        <!-- 数字框 -->
        <uni-number-box
          :min="1"
          :value="goods.goods_count"
          v-if="showRadio"
          @change="numChange"
        ></uni-number-box>
      </view>
    </view>
  </view>
</template>
<script>
export default {
  name: 'my-goods',
  // 定义 props 属性，用来接收外界传递到当前组件的数据
  props: {
    // 商品的信息对象
    goods: {
      type: Object,
      defaul: {}
    },
    showRadio: {
      type: Boolean,
      default: false
    }
  },
  methods: {
    numChange(val) {
      // console.log(typeof val);
      // 拿着数字输入框最新的值 去修改vuex中的cart数组
      // 需要给父页面传一个id，以及最新的输入框中的值
      this.$emit('num-handler', {
        goods_id: this.goods.goods_id,
        goods_count: val
      });
    },
    radioChange() {
      // 更改当前商品(goods_id)在vuex中的cart数组中的状态值goods_state
      this.$emit('radio-handler', {
        goods_id: this.goods.goods_id,
        goods_state: !this.goods.goods_state
      });
    }
  },
  data() {
    return {
      // 默认的空图片
      defaultPic:
        'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png'
    };
  },
  filters: {
    // 把数字处理为带两位小数点的数字
    tofixed(num) {
      return Number(num).toFixed(2);
    }
  }
};
</script>

<style lang="scss">
.goods-item {
  display: flex;
  padding: 10px 5px;
  border-bottom: 1px solid #f0f0f0;

  .goods-item-left {
    margin-right: 5px;
    display: flex;
    justify-content: space-around;
    align-items: center;
    .goods-pic {
      width: 100px;
      height: 100px;
      display: block;
    }
  }

  .goods-item-right {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex: 1;

    .goods-name {
      font-size: 13px;
    }

    .goods-price {
      font-size: 16px;
      color: #c00000;
    }
  }
}

.goods-info-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
</style>
